Power Plant (VPP) is one of the aggregation models suggested for Distributed Generation (DG) and controllable or flexible loads. This paper aims to show the increased benefits that the end-users of DG units can enjoy if they formulate a VPP with increased flexibility of ""controllable"" loads. In this study, data from a pilot VPP formulated by three experimental sites with DGs are used. The results presented are based on actual measurements of consumption and temperature combined with a variety of market prices and demand patterns for different seasons